Shelf unit



FIG. 1 is a perspective view of the shelf unit of the invention;

FIG. 2 is a top view of the shelf unit of FIG. 1;

FIG. 3 is an end view of the left end of the shelf unit shown in FIG. 2, the right end view being a mirror image of the view of FIG. 3;

FIG. 4 is a side view taken along the bottom side of the shelf unit shown in FIG. 2, the side view taken along the top of the shelf unit being a mirror image of that shown in FIG. 4;

FIG. 5 is a bottom view of the shelf unit of FIG. 1;

FIG. 6 is a cross-sectional view taken along line 6--6 of FIG. 1; and

FIG. 7 is a broken-away, cross-sectional view taken along line 7--7 of FIG. 1. 

The ornamental design for a shelf unit, as shown. 